Wheeled excavator or ditching-machine.



D. H. MAHONEY.

WHEELED BXGAVATOR 0R DITGHING MACHINE.

APPLICATION FILED NOV. 5, 1910.

Patented M51125, 1913.

3 SHEETS-SHBET 1.

conxmnm I'LANOGRAPH CO.,WA5HINGTDN, D, c.

D. H. MAHONEY. WHEELED EXGAVATOR 0R DITGHING MACHINE.

APPLICATION FILED NOV. 5, 1910.

Patented Mar. 25, 1913.

3 SHEETS-SHEET 2.

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CDLUMIHA PLANOGRMIH c0.. WASHINGTON. u. c.

D. H. MAHONBY.

WHEELED EXGAVATOR 0R DITGHING MACHINE.

APPLICATION FILED NOV. 5, 1910.

3 SHEETS-SHEET 3.

COLUMBIA PLANOflIAPn 420., WASHINGTON, D4 c.

Patented M34125, 1913.

UNITED STATES PATEN T ()FFICE.

DANIEL H. MAHONEY, OF VINCENNES, INDIANA, ASSIGNOR TO THE MAHONEY RAIL-ROAD DI'ICI-IING MACHINE COMPANY, OF VINCENNES, INDIANA.

WHEELED EXCAVATOR 0R DITCHING-MACHINE.

Specification of Letters Patent.

Patented Mar. 25, 1913.

Application filed. November 5, 1910. Serial No. 590,894.

To all whom it may concern Be it known that I, DANIEL H. MAHONEY, acitizen of the United States, residing at Vincennes, in the county ofKnox and State of Indiana, have invented certain new and usefulImprovements in Wheeled Excavators or Ditching-Machines; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in wheeled excavators or ditchingmachines, the object being to provide improved means whereby a ditch ortrench may be dug and the excavated material may be dumped or depositedeither to one side of the ditch or trench or into a cart or wagon.

In carrying the invention forming the subject matter of this applicationfor Letters-Patent into use, the platform of the machine is mounted uponwheels so that the entire machine may be moved from place to placeeither by animal power or a traction engine, and in use the carriage isanchored or blocked against rearward movement. The frame of the carriageis made up to maintain a pivotal arm to which the front end of a boom isconnected, the rear end of this boom'being provided with an excavator orscoop, and in operation the boom is moved forward by suitable blocks andtackle which extend to a power driven drum. When the excavator or scoophas been moved forward means are actuated to elevate the rear end of theboom and its attached scoop and during such upward movement the rear endof the boom -is swung to one side and positions the scoop out of linewith the ditch, when the contents of the scoop may be dropped eitherinto a vehicle or to one side of the ditch or trench.

The means or instrumentalities constituting my invention are shown bythe accompanying drawings, in which Figure 1 is a side elevation of apreferred form of excavating or ditching machine illustrated in 'accordwith my invention. Fig. 2, is a plan view, and Fig. 3 is an endelevation viewed from the rear.

In the make up of my invention I provide a platform that is supported onwheels the running gear being of rigid construction the axles, reach,wheels and bolsters being made to sustain a heavy platform or-bed 1,

preferably made of I-beams 2 and '3' which extend longitudinally and aremade fast to transverse bolsters 4 and 5 which are suitably connected tothe axles. The bolster 4 has attached at or adjacent to its ends uprights which are connected by a transverse board which serves as a seatand upon the forward ends of the beams is secured a bar 6 the same beingattached thereto and to the longitudinal beams which bar is of a lengthto extend beyond the beam 2 and to the projecting end a block issecured, a rope being passed through the block and through a blockattached to the boom, as will be hereinafter set forth. The portion ofthe bar 6 between the longitudinal beams 2 and 3 not only serves as apart of the frame but also as a foot rest for the driver when seatedupon the machine.

The longitudinal beams 2 and 3 carry the platform to which is secured amotor 9 and in the rear of the motor or engine there is a Windlass orwinch 10 which is in gear with the motor, said winchhaving two drums forcables or ropes'll and 12, and a sheave or pulley 32 about which isturned a rope 31 for moving the boom rearward, the shaft that carriesthe sheave being in gear with a gear wheel on the shaft of the Windlass.

The rear bolster 5 extends beyond the beam 3 and to the bolster and beamthere is secured an upright or mast 7 that has adjacent to its upper enda clip or other suitable means for connecting thereto a swinging arm orI-beam 8, that is maintained at an inclination by a roller 22 attachedto straps which are fastened to theupper face of the beam 8, the rollerengaging the upper face of the bar 21 that is carried by the uprights 17and 18. To maintain the mast in a fixed vertical position there areprovided braces 13 and 1 1 that extend from the bolster 5 upward at aninclination the upper end of the brace extending beyond the mast. Themast is further braced by tierods 15 and 16 which ext-end from the upperend of the mast 7 to the horizontal bar of a frame which consists ofuprights l7 and 18, the forward upright being secured at its lower endto the beam 2 and the lower end of the upright 18 being made fast to anextension 19 of the beam 2, a strut or brace 20 being secured to thelower end of the upright and extending therefrom downward beneath therear axle and then forward and upward to the underside of the beam 2.The horizontal bar 21 which is maintained by the uprights 17 and 18,provides a bearing for the roller 22 on the swinging beam 8. The bar 21is braced to the mast by stay-rods 15 and 16, and from the bar 21 extendrods or braces 24 and 25. The mast is also braced by a stay 26 securedat one end to the beam 3 and at its upper end to the end of the brace 13that extends beyond the mast 7. Projecting forward from the upright 17are two horizontal and parallel angle-bars 27 sup ported to providebetween them a slot, the forward ends of the bars 27 being connected bya plate 28, and an inclined brace extends from the bars 27 to theforward end of the beam 2. A horizontally swinging arm 29 is pivoted tothe seat supporting frame at a point about on a vertical line with theforward axle and said arm passes through the slot between the angle-bars27 and carries between its fulcrum and the bars 27, an eyeband 30 towhich a rope 31 is attached such rope extending rearward and beingwrapped about the sheave 32 and from thence rearward, so that when therear end of the rope 31 is rendered taut, by being drawn upon to effectfrictional engagement with the sheave 32, the arm 29 and boom 33 will bemoved rearward. The boom 33 is connected to the outer end of the arm 29by a swivel 34 and the rear end of the boom has attached a scoop ordipper 35 of anv suitable construction, such scoop 35 being pivotallyconnected to downward extending members 36 carried by the rear end ofthe boom. The scoop is provided in practice with the usual means forholding it in operative position for excavating and for dumping when itis elevated, which means may be as shown in Patents No. 701,593 datedJune 3, 1902 and No. 830,090 dated September 4, 1906.

To the underside of the boom 33 there is secured a block 37, a rope 11attached to the block 38 carried by the end of the bar 6 extends fromthe block 38 about the sheaves of the blocks 37 and 38 to a guide roller39 on the platform to one of the drums of the windlass 10. The boo-m hasalso attached thereto adjacent to its rear end and slightly in advanceof the scoop a block 40 and the swinging arm or beam 8'has in slidingconnection therewith a block 41 which carries on its underside buffers42 the space between the buffers being adapted to receive a part of theblock 40 when the blocks are in contact. The side pieces of the block 41are connected pivotally to side extensions 43 that have rollers whichengage the lower flange of the beam 8, and such beam has perforations toreceive a stop pin 44 which maintains the block .41 upon the beam andthis pin may be changed to position to vary the width of the ditch ortrench. The hoisting and lowering rope 12 is passed about the sheaves ofthe blocks 40 and 41 and from the upper block is guided over rollers4-5, 46 and 47 to the drum of the windlass. The windlass which is drivenfrom the motor is provided with suitable levers for actuating meansrendering the drive gear idle or in operative engagement with either ofthe drums as desired, and as no claims are laid specifically to thewindlass in this application a detailed description thereof is deemedunnecessary.

In use the ditching machine is drawn by animals or a traction engine tothe place desired, the machine is then anchored against rearwardmovement, and during operation of digging the ditch or trench themachine may be advanced step by step. When the scoop or dipper is in anelevated position to lower the same so that the parts will be in aposition for use as shown by Fig. 2, in dotted lines, the drums of thewindlass are permitted to rotate, the parts assuming the positionindicated. hen the scoop or excavator has been lowered by gravity froman elevated position, the operator by means of the drum draws upon thecable 11 to move the blocks 37 and 38 toward each other until the arm 29reaches the forward end of its guideway, such movement filling the scoopand bringing the same with the boom and the arm to the position shown bythe dotted lines on Fig. 2, and during such movement the rope 31 is paidout as the arm is moved forward. The parts indicated by the dotted linesbeing so positioned the drum of the windlass over which the rope 11 ispassed is held against rotation and the other drum of the windlass isput in action to wind the rope and draw the blocks 40 and 41 in contactone with the other to raise the rear end of the boom and its attachedscoop. By continuing the turning of the drum the block 41 is caused tomove upward along the inclined beam 8, and when the scoop has passed thevertical support 18, the drum about which the rope 11 is wound isreleased and when the scoop has reached the desired position laterallythe rope 31 is drawn upon and the smaller drum 32 is caused to rotate tomove the arm, the scoop and excavator rearward, the movement of suchparts also moving the beam 8 rearward. The movement of the boom andexcavator rearward determines where the contents of the excavator willbedeposited, such excavator being dumped by any suitable trip.

It will be noted that the frame is made up of straight bars which areconnected and braced to meet the strains to which such an implement ormachine will be subjected in use, the motor, windlass and the trip fordischarging the contents of the scoop or excavator are of any approvedconstruction and a further description of these parts are deemedunnecessary.

I claim 1. In a ditching machine, a main frame, a mast maintained toextend above one side of the main frame, a horizontal beam maintained bythe opposite side of the main frame, a beam maintained in swingingengagement with the upper portion of the mast and extending under thehorizontal beam and beyond the same,-means attached to the beam forengagement with the horizontal beam so that the beam will be in slidableengage ment with the beam, a boom having at its rear end an excavator,means for associating the boom with the beam to effect an upward andthen a lateral movement of the rear end of the boom and its attachedexcavator and means for operatively connecting the boom with the mainframe.

2. In a ditching machine, a main frame,

a mast maintained by one side of the main frame, a horizontal beammaintained by the opposite side of the main frame from the mast, a beampivoted to the mast, means for associating the beam in slidableengagement with the horizontal beam, a boom, an excavator attached tothe rear end of the boom, means for connecting the boom with the beamthat is pivoted to the mast, a horizontally movable arm attached to themain frame to extend beyond one side of the main frame, means forpivotally connecting the outer end of the horizontal arm with theforward end of the boom and means attached to the boom and to the framefor effecting forward movement of the arm and boom.

3. In a ditching machine, a wheeled support or platform, a mast attachedto one side of the support or platform, uprights attached to theopposite side of the support or platform, a horizontal beam attached tothe uprights, a beam pivoted to the mast to extend therefrom beneath andbeyond the horizontal beam, a boom provided at its rear end with anexcavator, a block mounted to slide upon the beam that is pivoted to themast, a block attached adjacent to the rear end of the boom, ahorizontally maintained arm, means for maintaining the hori- .zontal armin swinging engagement with the support or platform, means forconnecting the forward end of the boom with the outer end of thehorizontally maintained arm, means attached to the boom and to thesupport or platform for efiecting movement of the boom and arm in onedirection, means engaging the sheaves of the blocks for hoisting therear end of the boom and moving the same laterally and means for movingthe horizontally maintained arm and the boom rearward.

4. In a ditching machine, a frame, a horizontally movable arm pivoted tothe forward portion of the frame said arm extending beyond the oppositeside of the frame from which it is pivoted, a mast on one side of theframe, a horizontally maintained beam on the opposite side of the framefrom the mast, an 1ncl1ned beam pivoted to the mast, means forassociating the inclined beam in mov-- able relation with the horizontalbeam, a block slidable upon the inclined beam, a boom having at its rearend an excavator, means for connecting the forward end of the boom tothe outer end of the horizontally movable arm and means for connectingthe slidable block with the boom.

5. In a ditching machine, a main frame, an arm pivoted at one end to theframe the Opposite end of the arm extending beyond the side of theframe, a boom attached at its forward end to the outer end of the arm,an excavator attached to the rear end of the boom, a block attached tothe forward portion of the main frame, a block attached to the undersideof the boom, means engaging said blocks to move the boom and the armforward, and means engaging the arm to move the arm and the boomrearward.

6. In a ditching machine having a wheel supported frame, a horizontallymovable arm that extends beyond one side of the frame, a boom providedat one end with an excavator, means for connecting the boom with thearm, blocks attached to the boom and to the frame, a drum mounted uponthe frame, a flexible connection that engages the blocks and the drumand means for hoisting the rear end of the boom and its attachedexcavator comprising blocks, a flexible connection and a pivoted beamfor one of the blocks such block being maintained in movable engagementwith the pivoted beam.

7 In a ditching machine, a frame provided with a mast, a beam maintainedin swinging engagement with the mast, a

frame by which the beam is maintained in an inclined position, a blockadapted to move upon the inclined beam, a boom and its associatedexcavator maintained to be susceptible of an upward and a lateralmovement, a block attached to the boom, and a flexible connection forengagement with the sheaves of the blocks and a flexible connectionwhich extends to the mast and from thence to a drum 011 the platformsupported by the frame.

8. In a ditching machine, a platform mounted on axles that havesupporting wheels, a motor, a windlass having drums which are rotated bythe motor, a horizontally movable arm which is pivoted at one end to theplatform, guide-bars for the arm, a boom pivotally connected to the endof the arm'thatprojects beyond the guidebars, an excavator attached tothe boom to depend below the rear end of the same, means forsimultaneously moving the boom, arm and excavator forward, a mast, aframe comprising a horizontally maintained beam,

a beam pivoted to the mast and movable along a partof the horizontallymaintained bar, a block carried in movable engagement with the bar, ablock connected to the rearward portion of the boom, means forconnecting the blocks which extends to guides on the mast and platformto one of the drums of the Windlass, and a connection between the armand another drum of the Windlass.

9. In a ditching machine of the type shown, a frame, an arm associatedwith the forward portion of the frame to extend to 'one side of the sameand to be swung horizontally, a boom having an excavator attached to itsrear end, means for pivotally connecting the forward end of the boomwith the outer end of the arm, means for moving the boom and the arm, amast, a beam pivoted to the mast, means for maintaining the beam in aninclined position, a sliding block that engages the inclined beam, aflexible connection associated with the boom; the sliding block and themast to effect upward and then an upward and lat eral movement of therear end of the boom.

In testimony whereof I aflix my signature in the presence of twowitnesses.

DANIEL H. MAHONEY.

Vitnesses JOSEPHINE C. DUESTERBERY, C. B. KEssINoER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

